CVE-2017-5447

CRITICAL

Debian Linux < 45.9.0 - Use After Free

Title source: rule

Description

An out-of-bounds read during the processing of glyph widths during text layout. This results in a potentially exploitable crash and could allow an attacker to read otherwise inaccessible memory. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · htmldosmultiple
https://www.exploit-db.com/exploits/42071

References (12)

Scores

CVSS v3 9.1
EPSS 0.1713
EPSS Percentile 95.0%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Details

CWE
CWE-416
Status published
Products (17)
debian/debian_linux 9.0
mozilla/firefox 52.0
mozilla/firefox < 45.9.0
mozilla/thunderbird < 52.1.0
redhat/enterprise_linux 6.0
redhat/enterprise_linux 7.0
redhat/enterprise_linux_desktop 6.0
redhat/enterprise_linux_desktop 7.0
redhat/enterprise_linux_server 6.0
redhat/enterprise_linux_server 7.0
... and 7 more
Published Jun 11, 2018
Tracked Since Feb 18, 2026